..

Sustainable Dredged Material Management Sustainable Dredged Material Management

Presented to:Presented to:WEDA East Coast WEDA East Coast Chapter Chapter

October 10, 2007October 10, 2007

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SustainabilitySustainability

a means of configuring human activity so that society, its members, and its economies are able to meet

their needs and express their greatest potential, while preserving biodiversity and natural ecosystems

in the very long term

easily put…

sustainability is about thinking and actingin the future tense

(Planning for the Future)

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PEOPLE, PLANET, PROFIT

Triple Bottom Line The Business of Sustainability

The Triple Bottom Line concept revolves around evaluating business decisions in all three areas equally.

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Sustainability (continued)Sustainability (continued)

Executive Order 13423 It is the policy of the United States that Federal agencies

conduct their environmental, transportation, and energy-related activities under the law in support of their respective missions in an environmentally, economically and fiscally sound, integrated, continuously improving, efficient, and sustainable manner.

“Sustainable” means to create and maintain conditions, under which humans and nature can exist in productive harmony, that permit fulfilling the social, economic, and other requirements of present and future generations of Americans.

Executive Order 13423 It is the policy of the United States that Federal agencies

conduct their environmental, transportation, and energy-related activities under the law in support of their respective missions in an environmentally, economically and fiscally sound, integrated, continuously improving, efficient, and sustainable manner.

“Sustainable” means to create and maintain conditions, under which humans and nature can exist in productive harmony, that permit fulfilling the social, economic, and other requirements of present and future generations of Americans.

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Sustainability (continued)Sustainability (continued)

Office of the Federal Environmental Executive Mission is to “promote sustainable environmental

stewardship throughout the federal government.”

Includes those concepts, strategies, tools, practices, and approaches that lead to environmental improvement in a manner that is sustainable over time and contributes to the social and economic condition.

Office of the Federal Environmental Executive Mission is to “promote sustainable environmental

stewardship throughout the federal government.”

Includes those concepts, strategies, tools, practices, and approaches that lead to environmental improvement in a manner that is sustainable over time and contributes to the social and economic condition.

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Sustainability (continued)Sustainability (continued)

U.S. Army Strategy for the Environment “Sustain the Mission – Secure the Future” “Obligation to ensure that our Soldiers today – and the

Soldiers of the future – have the land, water, and air resources they need to train; a healthy environment in which to live; and the support of local communities and the American people.”

U.S. Army Strategy for the Environment “Sustain the Mission – Secure the Future” “Obligation to ensure that our Soldiers today – and the

Soldiers of the future – have the land, water, and air resources they need to train; a healthy environment in which to live; and the support of local communities and the American people.”

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Sustainability (continued)Sustainability (continued)

U.S. Army Corps of Engineers/Environmental Operating Principles

Strive to achieve environmental sustainability. An environment maintained in a healthy, diverse and sustainable condition is necessary to support life.

Interdependence of life and the physical environment Balance and synergy among human development activities and

natural systems Accept corporate responsibility and accountability Assess and mitigate cumulative impacts Integrated knowledge base

Sustainability can only be achieved by the combined efforts of federal agencies, tribal, state and local governments, and the private sector, each doing its part, backed by the citizens of the world.

U.S. Army Corps of Engineers/Environmental Operating Principles

Strive to achieve environmental sustainability. An environment maintained in a healthy, diverse and sustainable condition is necessary to support life.

Interdependence of life and the physical environment Balance and synergy among human development activities and

natural systems Accept corporate responsibility and accountability Assess and mitigate cumulative impacts Integrated knowledge base

Sustainability can only be achieved by the combined efforts of federal agencies, tribal, state and local governments, and the private sector, each doing its part, backed by the citizens of the world.

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Sustainability (continued)Sustainability (continued)

U.S. Army Corps of Engineers, Mississippi Valley DivisionUpper Mississippi River System (UMRS)

Navigation and Ecosystem Sustainability Program (NESP) Long-term program of navigation improvements and

ecological restoration over a 50-year period implemented in increments through integrated, adaptive management.

Primary goal of program is implementation of integrated, dual-purpose plan to ensure economic and environmental sustainability of the UMRS.

NESP does not directly affect authorization and funding of other programs addressing needs of UMRS.

U.S. Army Corps of Engineers, Mississippi Valley DivisionUpper Mississippi River System (UMRS)

Navigation and Ecosystem Sustainability Program (NESP) Long-term program of navigation improvements and

ecological restoration over a 50-year period implemented in increments through integrated, adaptive management.

Primary goal of program is implementation of integrated, dual-purpose plan to ensure economic and environmental sustainability of the UMRS.

NESP does not directly affect authorization and funding of other programs addressing needs of UMRS.

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Sustainable Dredged Material Management (SDMM) - DefinitionSustainable Dredged Material Management (SDMM) - Definition

The effective and efficient long-term, adaptive management of dredged material that enhances the quality of life by ensuring stakeholder buy-in, prioritizing cost-effective beneficial uses, maintaining communications with the public, actively managing material placement, and is flexible enough to meet the changing needs of business and the environment.

The effective and efficient long-term, adaptive management of dredged material that enhances the quality of life by ensuring stakeholder buy-in, prioritizing cost-effective beneficial uses, maintaining communications with the public, actively managing material placement, and is flexible enough to meet the changing needs of business and the environment.

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SDMM ObjectivesSDMM Objectives Establish (or utilize existing) stakeholder groups

(Regulators, environmental groups, citizen groups, trade/business groups, etc.) Ensures consensus of plan Expedites regulatory approval

Regional approach (Chesapeake Bay, Long Island Sound) Identify and inventory dredging requirements

Projected new work and maintenance Federal State Local Industrial/Private

Identify and inventory material placement capabilities and capacities of existing sites

Establish (or utilize existing) stakeholder groups (Regulators, environmental groups, citizen groups, trade/business groups, etc.) Ensures consensus of plan Expedites regulatory approval

Regional approach (Chesapeake Bay, Long Island Sound) Identify and inventory dredging requirements

Projected new work and maintenance Federal State Local Industrial/Private

Identify and inventory material placement capabilities and capacities of existing sites

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SDMM Objectives (continued)SDMM Objectives (continued)

Active management/monitoring is essential to optimize capacity at existing sites Effective dewatering Vertical/Horizontal expansion? Mine material (beneficial use) to provide new capacity

Sediment transport modeling/deposition analysis Identify potential beneficial use projects

Greatest environmental benefit with the most capacity for the least cost

Combine with other projects (e.g., dredged material used to build/restore flood control levees)

Identify potential beneficial use products/markets Develop ranking criteria to prioritize dredging and

placement/beneficial use options

Active management/monitoring is essential to optimize capacity at existing sites Effective dewatering Vertical/Horizontal expansion? Mine material (beneficial use) to provide new capacity

Sediment transport modeling/deposition analysis Identify potential beneficial use projects

Greatest environmental benefit with the most capacity for the least cost

Combine with other projects (e.g., dredged material used to build/restore flood control levees)

Identify potential beneficial use products/markets Develop ranking criteria to prioritize dredging and

placement/beneficial use options

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SDMM Objectives (continued)SDMM Objectives (continued)

Identify permitting requirements Identify dredged material characteristics Thorough evaluation of alternatives & trade-off analysis

Environmental benefit Capacity Cost Regulatory acceptability Technical risk

Develop and maintain a public outreach campaign

Identify permitting requirements Identify dredged material characteristics Thorough evaluation of alternatives & trade-off analysis

Environmental benefit Capacity Cost Regulatory acceptability Technical risk

Develop and maintain a public outreach campaign

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SDMM ChallengesSDMM Challenges Lack of funding for dredging, placement, and beneficial

use projects Limited federal cost-sharing available Conflicting agendas (sometimes between Federal

agencies) Many users often compete for limited placement capacity Federal channels, state/local & private terminals create

complex dredging & placement needs Trend is larger and deeper draft ships – many channels

need to be deepened High environmental benefit options can be very expensive Corps funded project-by-project

Lack of funding for dredging, placement, and beneficial use projects

Limited federal cost-sharing available Conflicting agendas (sometimes between Federal

agencies) Many users often compete for limited placement capacity Federal channels, state/local & private terminals create

complex dredging & placement needs Trend is larger and deeper draft ships – many channels

need to be deepened High environmental benefit options can be very expensive Corps funded project-by-project

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SDMM ChallengesSDMM Challenges WDRA of 2007

Regional Sediment Management Plans Permits selection of a disposal method that is

not the least-cost option if the Secretary determines that incremental costs of method are reasonable in relation to environmental benefits

Cooperate with any state in the preparation of a comprehensive state or regional coastal sediment management plan within the boundaries of the state

WDRA of 2007 Regional Sediment Management Plans Permits selection of a disposal method that is

not the least-cost option if the Secretary determines that incremental costs of method are reasonable in relation to environmental benefits

Cooperate with any state in the preparation of a comprehensive state or regional coastal sediment management plan within the boundaries of the state

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Dredged Material Management Plan (DMMP)Dredged Material Management Plan (DMMP)

Why Prepare a DMMP ? Federal requirement Demonstrated

insufficient placement capacity for 20 years

Why Prepare a DMMP ? Federal requirement Demonstrated

insufficient placement capacity for 20 years

How is it Prepared? Includes input from Federal, State, and Public stakeholders Integrated with State DMMP Process

How is it Prepared? Includes input from Federal, State, and Public stakeholders Integrated with State DMMP Process

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What is a DMMP?What is a DMMP?

DMMP Addresses: Dredging needs Disposal capabilities Capacities of placement areas Environmental compliance requirements Potential for beneficial usage of dredged materials Indicators of continued economic justification

Normally 100% federally-funded Contains an integrated NEPA document Justifies follow-on, site-specific FS Studies

DMMP Addresses: Dredging needs Disposal capabilities Capacities of placement areas Environmental compliance requirements Potential for beneficial usage of dredged materials Indicators of continued economic justification

Normally 100% federally-funded Contains an integrated NEPA document Justifies follow-on, site-specific FS Studies

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Example DMMP : CENAB - Baltimore Harbor & ChannelsExample DMMP : CENAB - Baltimore Harbor & Channels

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CENAB DMMP GoalCENAB DMMP Goal

To develop a plan to maintain, in an economically and environmentally sensitive manner, channels necessary for navigation in the Port of Baltimore, conduct dredged material placement in the most environmentally sound manner, and maximize the use of dredged material as a beneficial resource.

To develop a plan to maintain, in an economically and environmentally sensitive manner, channels necessary for navigation in the Port of Baltimore, conduct dredged material placement in the most environmentally sound manner, and maximize the use of dredged material as a beneficial resource.

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CENAB DMMP ProcessCENAB DMMP Process

Preliminary AssessmentSeptember 2001

Dredged MaterialManagement

Study

Tiered EIS

Dredged MaterialManagement

Plan(Jan 2006)

Site SpecificStudies

(As Appropriate)

ImplementRecommended

Options

PMPOct 02

Mid-Bay Island Study

Poplar Island Expansion Study

RODAug 2006ROD

Aug 2006

MasonvilleBlackwater NWR

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CENAB DMMP Boundaries – What areas are included?CENAB DMMP Boundaries – What areas are included?

DMMP includes:• C&D Canal Approach

Channels (south of Sassafras River)

• Harbor Channels

• Chesapeake Bay Approach Channels (MD)

• Chesapeake Bay Approach Channels(VA)

DMMP includes:• C&D Canal Approach

Channels (south of Sassafras River)

• Harbor Channels

• Chesapeake Bay Approach Channels (MD)

• Chesapeake Bay Approach Channels(VA)

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CENAB DMMP Process – What alternatives were considered?CENAB DMMP Process – What alternatives were considered? Maximize Use of Existing

Placement Sites HMI, PIERP, Open Water

placement, etc.

New Placement Sites CAD/CDF, Island

Creation/Restoration, etc.

Innovative Use Building Products,

Mines/Quarries, Agricultural Placement, Shoreline & Wetland Restoration

Maximize Use of Existing Placement Sites

HMI, PIERP, Open Water placement, etc.

New Placement Sites CAD/CDF, Island

Creation/Restoration, etc.

Innovative Use Building Products,

Mines/Quarries, Agricultural Placement, Shoreline & Wetland Restoration

Poplar IslandPoplar Island

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DMMP Management ApproachDMMP Management Approach

Tiered EIS Eliminates need for duplicative

environmental analysis during follow-on feasibility studies

Web-based GIS & information management portal GIS tool screens numerous locations

using consolidated technical Bay data Utilizes enormous amounts of existing Bay

data Enhances data sharing and coordination

amongst stakeholders

Tiered EIS Eliminates need for duplicative

environmental analysis during follow-on feasibility studies

Web-based GIS & information management portal GIS tool screens numerous locations

using consolidated technical Bay data Utilizes enormous amounts of existing Bay

data Enhances data sharing and coordination

amongst stakeholders

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CENAB DMMP –Screening Criteria CENAB DMMP –Screening Criteria

Quantitative Cost Capacity Environmental Impact

Qualitative Criteria Technical/Logistical Risk Implementation Risk

Quantitative Cost Capacity Environmental Impact

Qualitative Criteria Technical/Logistical Risk Implementation Risk

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Quantitative Analysis – COST & CAPACITYQuantitative Analysis – COST & CAPACITY

Established basis of assumptions for each of 77 alternatives

Determined placement capacity Prepared cost estimates for each alternative,

including elements from concept through O&M: Initial Study, Permitting, and Design Site development and closeout Dredging, transport, and Placement Habitat Development Operations & Maintenance Other as applicable

Established basis of assumptions for each of 77 alternatives

Determined placement capacity Prepared cost estimates for each alternative,

including elements from concept through O&M: Initial Study, Permitting, and Design Site development and closeout Dredging, transport, and Placement Habitat Development Operations & Maintenance Other as applicable

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Quantitative Analysis – ENVIRONMENTAL IMPACTQuantitative Analysis – ENVIRONMENTAL IMPACT Impacts determined by Bay Enhancement Working

Group (BEWG) Considered 52 Criteria in 10 Categories

Scored each Federal DMMP Alternative +1 potential protection or enhancement 0 no impact expected -1 potential negative impact

Impacts determined by Bay Enhancement Working Group (BEWG)

Considered 52 Criteria in 10 Categories

Scored each Federal DMMP Alternative +1 potential protection or enhancement 0 no impact expected -1 potential negative impact

Water Quality Waterbirds

Aquatic Habitat Terrestrial

Wetlands Physical Parameters

Aquatic Biology Human Use Attributes

Protected Species Beneficial Attributes

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DMMP Alternatives AnalysisDMMP Alternatives AnalysisHarbor C&D MD Bay VA Bay

1 Agricultural Placement- Maryland $51 $51 $50 500,000 2.4092 Agricultural Placement- Virginia $43 500,000 2.4093 Artificial Island Creation- Lower Bay $18 34,600,000 0.6014 Artificial Island Creation- Upper Bay $12 $11 $12 48,400,000 0.9625 Beach Nourishment- Virginia $12 5,600,000 2.1186 Building Products $117 $120 $118 $124 500,000 3.3647 C&D Canal Pierce Creek Upland Sites Expansion $20 $16 $19 4,400,000 1.1998 Capping- Landfill $37 $39 $38 $36 500,000 2.8699 Capping- Brownfields $68 $70 $69 $68 500,000 2.86910 Capping- Elizabeth River, VA $28 97,000 2.80411 Capping- Patapsco River, MD $12 $11 810,000 2.80412 Confined Aquatic Disposal Pit- Patapsco River, MD $5 3,700,000 2.14613 Confined Disposal Facility- Lower Bay $11 10,000,000 0.72314 Confined Disposal Shoreline Facility- Patapsco River $16 3,600,000 1.68115 Cox Creek Expansion $19 1,900,000 1.63116 Hart-Miller Island Expansion $12 $11 $12 25,000,000 1.00217 Large Island Restoration- Lower Bay $16 4,600,000 1.69218 Large Island Restoration- Mid Bay $20 $20 $18 34,600,000 2.38719 Mine Placement- Cecil County, MD

a $52 $49 $52 10,700,000 3.576

20 Mine Placement- Western Maryland b $65 $72 $66 2,000,000 3.576

21 Norfolk Ocean Open Water Placement (Existing) $28 $27 $11 sufficient 1.90922 Pooles Island Open Water Site Expansion $5 $6 5,000,000 0.90923 Poplar Island Modification $19 $18 24,000,000 1.21124 Rappahannock Shoal Open Water Site Expansion $20 $19 $8 5,000,000 025 Shoreline Restoration- Lower Bay $41 790,000 1.40926 Shoreline Restoration- Mid Bay $41 $41 $39 1,260,000 1.52827 Shoreline Restoration- Upper Bay $42 $40 $40 790,000 1.83928 Small Island Restoration- Lower Bay $26 2,300,000 1.69629 Small Island Restoration- Mid Bay $28 $26 $25 2,300,000 1.68930 Wetland Restoration- Dorchester County, MD $38 $38 $35 3,200,000 3.71931 Dam Neck Ocean Open Water Placement (Existing) $9 sufficient 1.90932 Hart-Miller Island (Existing) $9 $8 $9 10,000,000 2.29533 New Open Water (Deep Trough) $6 $5 sufficient 1.16734 Pooles Island Open Water Site (Existing) $5 6,000,000 1.12135 Rappahannock Shoal Deep Alternate Open Water Site (Existing) $7 sufficient 0.87536 Wolf Trap Alternate Open Water Placement (Existing) $22 $20 $8 sufficient 0.642

BEWG scoreALTERNATIVEChannels Overall

Capacity (cy)

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Qualitative Risk Analysis – TECHNICAL / LOGISTICALQualitative Risk Analysis – TECHNICAL / LOGISTICAL

Likelihood that the alternative will be implementable or will perform as expected, in terms of placement capacity and/or environmental benefits

1 – Alternative is routine / cost-effective 2 – Alternative requires development of specialized techniques

and materials 3 – Alternative requires standardization of methods 4 – Alternative is in initial implementation stages 5 – Alternative is in basic science, engineering and

experimentation stage

Risk unacceptable when scored > 4

Examples of Alternatives too risky – Agricultural Placement, Building Products, Mine Placement

Likelihood that the alternative will be implementable or will perform as expected, in terms of placement capacity and/or environmental benefits

1 – Alternative is routine / cost-effective 2 – Alternative requires development of specialized techniques

and materials 3 – Alternative requires standardization of methods 4 – Alternative is in initial implementation stages 5 – Alternative is in basic science, engineering and

experimentation stage

Risk unacceptable when scored > 4

Examples of Alternatives too risky – Agricultural Placement, Building Products, Mine Placement

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Qualitative Risk Analysis – POLITICAL / LEGALQualitative Risk Analysis – POLITICAL / LEGAL

Likelihood that the alternative will proceed or not be significantly delayed within 20-year planning window because of public opinion or legal and regulatory challenges

1 – No law to prohibit/minor public or regulatory issues 2 – No law to prohibit/moderate public or regulatory issues 3 – No law to prohibit/significant public or regulatory issues 4 – Law prohibiting/minor public or regulatory issues 5 – Law prohibiting/significant public or regulatory issues

Risk unacceptable when scored > 3

Example of Alternatives too risky – Artificial Island Creation, New Open Water (Deep Trough)

Likelihood that the alternative will proceed or not be significantly delayed within 20-year planning window because of public opinion or legal and regulatory challenges

1 – No law to prohibit/minor public or regulatory issues 2 – No law to prohibit/moderate public or regulatory issues 3 – No law to prohibit/significant public or regulatory issues 4 – Law prohibiting/minor public or regulatory issues 5 – Law prohibiting/significant public or regulatory issues

Risk unacceptable when scored > 3

Example of Alternatives too risky – Artificial Island Creation, New Open Water (Deep Trough)

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CENAB DMMP –Suites DevelopmentCENAB DMMP –Suites Development

Suites of alternatives developed for each geographic area using algorithm

Considered only alternatives with acceptable technical/logistical risk

All suites meet the current and future dredged material capacity requirements

Costs for each suite are sum of costs for individual alternatives

Habitat Benefit Index for each suite is the sum of the environmental benefits for each alternative times the acreage of habitat created by each alternative

Suites of alternatives developed for each geographic area using algorithm

Considered only alternatives with acceptable technical/logistical risk

All suites meet the current and future dredged material capacity requirements

Costs for each suite are sum of costs for individual alternatives

Habitat Benefit Index for each suite is the sum of the environmental benefits for each alternative times the acreage of habitat created by each alternative

Harbor = 33 mcy Chesapeake Bay (MD) = 43 mcy

C&D Approach = 30 mcy Chesapeake Bay (VA) = 16 mcy

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CENAB DMMP –Tradeoff Analysis CENAB DMMP –Tradeoff Analysis

14,00 combinations – Optimal curve established to select recommended plan

Once suites developed meeting sufficient capacity, comparison between cost & environmental benefit

Selected most cost efficient means to achieve environmental benefit

Applied theory of acceptable legal/political risk, eliminating those too risky

14,00 combinations – Optimal curve established to select recommended plan

Once suites developed meeting sufficient capacity, comparison between cost & environmental benefit

Selected most cost efficient means to achieve environmental benefit

Applied theory of acceptable legal/political risk, eliminating those too risky

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Alternative Suites Development –C&D and Chesapeake Bay (MD) Legal/Acceptable SuitesAlternative Suites Development –C&D and Chesapeake Bay (MD) Legal/Acceptable Suites

All Legal Cost-effective Suites

$0

$200

$400

$600

$800

$1,000

$1,200

$1,400

0 2,000 4,000 6,000 8,000 10,000 12,000

Mill

ion

s

Environmental Benefit Index(Based on BEWG scores)

To

tal C

ost

Deep Trough Suites Large Island Suites Poplar Suites Norfolk Ocean Suites Artificial Island Suite

All Legal Cost-effective Suites

$0

$200

$400

$600

$800

$1,000

$1,200

$1,400

0 2,000 4,000 6,000 8,000 10,000 12,000

Mill

ion

s

Environmental Benefit Index(Based on BEWG scores)

To

tal C

ost

Deep Trough Suites Large Island Suites Poplar Suites Norfolk Ocean Suites Artificial Island Suite

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CENAB DMMP –Recommended PlanCENAB DMMP –Recommended Plan

Chesapeake Bay Approach (VA) Channels Existing Open Water Placement

Harbor Channels

Multiple Confined Disposal Facilities along Patapsco

C&D Canal Approach and Chesapeake Bay Approach (MD) Channels

Poplar Island Expansion Large Island Restoration-Mid Bay Wetland Restoration (Dorchester County)

Chesapeake Bay Approach (VA) Channels Existing Open Water Placement

Harbor Channels

Multiple Confined Disposal Facilities along Patapsco

C&D Canal Approach and Chesapeake Bay Approach (MD) Channels

Poplar Island Expansion Large Island Restoration-Mid Bay Wetland Restoration (Dorchester County)

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CENAB DMMP – InnovationsCENAB DMMP – Innovations

Bay-wide study, not limited to specific dredged channels or placement sites

Extensively used GIS Utilized web-based information management

portal to gather and share enormous amounts of existing data on the Bay

Integrated efforts of Maryland Port Administration & utilized existing constituency groups

Utilized quantitative & qualitative data to develop defensible alternative elimination process

Bay-wide study, not limited to specific dredged channels or placement sites

Extensively used GIS Utilized web-based information management

portal to gather and share enormous amounts of existing data on the Bay

Integrated efforts of Maryland Port Administration & utilized existing constituency groups

Utilized quantitative & qualitative data to develop defensible alternative elimination process

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WESTON OverviewWESTON Overview For 50 years, WESTON has been a leading environmental

and redevelopment company Employee-owned with a staff of 1800 in 60 offices world-

wide Over 10 years of diverse experience working for USACE,

Ports, and Industry in all phases of dredged material management Baltimore Corps DMMP/EIS San Francisco Corps DMMP/EIS Guam/Navy LTMS Delaware River – Industrial Clients CENAP – NJ Intracoastal Waterway FS

For 50 years, WESTON has been a leading environmental and redevelopment company

Employee-owned with a staff of 1800 in 60 offices world-wide

Over 10 years of diverse experience working for USACE, Ports, and Industry in all phases of dredged material management Baltimore Corps DMMP/EIS San Francisco Corps DMMP/EIS Guam/Navy LTMS Delaware River – Industrial Clients CENAP – NJ Intracoastal Waterway FS

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CENAB DMMPCENAB DMMP

For additional information visit the CENAB DMMP Website:

http://www.nab.usace.army.mil/projects/DMMP/index.html

or contact

Mark Mendelsohn, CENAB (410) 962-9499

Kurt Frederick, WESTON (610) 701-3924

For additional information visit the CENAB DMMP Website:

http://www.nab.usace.army.mil/projects/DMMP/index.html

or contact

Mark Mendelsohn, CENAB (410) 962-9499

Kurt Frederick, WESTON (610) 701-3924

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DMMP Study Flow ChartDMMP Study Flow ChartPublicInput

Geographic AreasIdentification

AlternativesIdentification

PrimaryScreening

InitialAlternatives

List

AlternativesDevelopment

Screening CriteriaDevelopment

Trade-OffAnalysis

AlternativesEvaluation

Suite ofAlternatives

EIS &Implementation

Plan

DraftDMMP

PublicInput

PreliminaryAssessment

NEPANotice of

Intent

Record of Decision

FinalDMMP

Public Meetings

PublicInput

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Alternative Suites Development – All suites for C&D and Chesapeake Bay (MD)Alternative Suites Development – All suites for C&D and Chesapeake Bay (MD)

All Suites

$0

$200

$400

$600

$800

$1,000

$1,200

$1,400

0 2,000 4,000 6,000 8,000 10,000 12,000

Mill

ion

s

Habitat Benefit Index(Based on BEWG Scores)

To

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os

t

Deep Trough Suites Lg Island Suites Poplar Island Suites Norfolk Ocean Suites Artificial Island Suite